EN856 4SP/4SH
EN856 4SH Four-Spiral Hydraulic Hose
Four-spiral hose for the most demanding high-pressure hydraulic applications.
Quick Specifications
| Inner Tube | Oil-resistant NBR synthetic rubber |
|---|---|
| Reinforcement | Four alternating high-tensile steel wire spirals |
| Cover | Abrasion & weather resistant synthetic rubber |
| Temperature | -40°C to +120°C |
| Standard | EN856 4SH |
| Inside Diameter | 3/4" to 2" |
SAE / DIN / EN Standards
100% Proof Tested
OEM Branding Available
MOQ Flexible
Overview
Product Overview
The EN856 4SH hose is the highest-pressure four-spiral hose in the EN856 standard, designed for the most demanding hydraulic systems. With 4 layers of high-tensile steel wire spiral and a thick abrasion-resistant cover, it is the choice for ultra-high-pressure applications in heavy industry.
This design withstands extreme pressures and temperatures ranging from -40°F to 212°F, ensuring reliable hydraulic performance under harsh conditions.
Its synthetic rubber cover is highly tolerant to adverse weather conditions, oil, and abrasion, MSHA approved. And EN 856 4SH/DIN 20023 4SH 4-ply spiral hydraulic hose for very high-pressure applications and pulse cycles, and it mainly used in the oil-pressure equipment sector where medium-high pressures ranging from 250 to 420 bars for industries such as Oil & Gas, Mining, Steel, Forestry, and other industries.
It has nominal diameters from 3/4" to 2". It tolerates pressures from 3500 PSI to 6000 PSI. It has excellent performance in delivering petroleum-based hydraulic fluids in the working temperature of -40 °C to +100 °C. Its main difference with the 4SP hose is that the 4SH hose tolerates higher pressures.
For installing the couplings, the “skiving” operation must be performed. For better sealing, the use of multispiral fittings is recommended.
EN 856 4SH hose is a hydraulic hose with a high-pressure rating, which makes it suitable for heavy-duty industrial applications where fluids need to be reliably transferred under extreme pressure conditions.
Recommended for: Very high-pressure applications and pulse cycles, for petroleum-based fluids. Exceeds the requirements of EN 856 4SH and DIN 200023 4SH.
Its four spiral layer of high-strength steel wire construction and resistance to abrasion, weather, and oil make it a reliable choice for fluid transfer in harsh environments.
| DN | inch | mm | Dash | Min | Max | Min | Max | Min | Max | Bar | Psi | Bar | Psi | mm | kg/m | M |
| 19 | 3/4″ | 19.0 | -12 | 18.6 | 19.8 | 27.6 | 29.2 | 31.4 | 33.0 | 420 | 6090 | 1680 | 24360 | 280 | 1.60 | 40 |
| 25 | 1″ | 25.4 | -16 | 25.0 | 26.4 | 34.4 | 36.0 | 37.5 | 39.9 | 380 | 5510 | 1520 | 22040 | 340 | 2.20 | 40 |
| 32 | 1-1/4″ | 31.8 | -20 | 31.4 | 33.0 | 40.9 | 42.9 | 43.9 | 47.1 | 325 | 4710 | 1300 | 18850 | 460 | 2.75 | 40 |
| 38 | 1-1/2″ | 38.1 | -24 | 37.7 | 39.3 | 47.8 | 49.8 | 51.9 | 55.1 | 290 | 4205 | 1160 | 16820 | 560 | 3.75 | 40 |
| 51 | 2″ | 50.8 | -32 | 50.4 | 52.0 | 62.2 | 64.2 | 66.5 | 69.7 | 250 | 3625 | 1000 | 14500 | 700 | 4.95 | 40 |
Key Features
Key Features
- Four alternating high-tensile steel wire spiral reinforcement
- Higher working pressure at large diameters than 4SP
- Thick abrasion-resistant cover for heavy industrial service
- Temperature range -40°C to +120°C for high-temperature hydraulics
- Impulse life ≥ 400,000 cycles under cyclic loading
- Meets EN 856 4SH dimensional and pressure requirements
Structure
Hose Structure
Inner tube: oil-resistant NBR synthetic rubber
Reinforcement: four alternating layers of high-tensile steel wire spiral
Cover: heavy-duty abrasion, oil and weather-resistant synthetic rubber
Applications
Applications
Recommended for:
- Hydraulic presses
- Heavy cranes
- Steel mill equipment
- Ship & marine hydraulics
- High-pressure testing rigs
Advantages
Why Choose This Product
100%% proof pressure tested at 2× working pressure on every batch
Burst pressure ≥ 3× working pressure per EN 856
Impulse tested to 400,000+ cycles for long service life
Full traceability from raw material to finished hose
OEM branding, custom cover compounds and packaging available
Proven in hydraulic presses, steel mills and marine hydraulics
Technical Data
Technical Specifications
| Inner Tube | Oil-resistant NBR synthetic rubber |
|---|---|
| Reinforcement | Four alternating high-tensile steel wire spirals |
| Cover | Abrasion & weather resistant synthetic rubber |
| Temperature | -40°C to +120°C |
| Standard | EN856 4SH |
| Inside Diameter | 3/4" to 2" |
| Working Pressure | 42 MPa (3/4") to 16 MPa (2") |
| Burst Pressure | ≥ 3× working pressure |
| Impulse Life | ≥ 400,000 cycles |
| Length | Custom |
| Color | Black (custom available) |
FAQ
Frequently Asked Questions
When to specify 4SH instead of 4SP?
Specify 4SH when you need higher working pressure at larger inside diameters. For example, at 2" ID, both 4SP and 4SH are rated 16 MPa, but at 3/4" to 1" 4SH is engineered for a different pressure envelope. Always compare the published pressure table for your exact size.
What is the burst pressure of 4SH?
Burst pressure is at least 3× working pressure for every size. For 3/4" 4SH the working pressure is 42 MPa, giving a minimum burst pressure of 126 MPa.
Can 4SH be used in sub-zero environments?
Yes. The NBR compound is rated for -40°C. For arctic applications below -40°C, specify a low-temperature cover compound. Always confirm with our engineers for continuous cold-climate service.
Do you provide crimped 4SH assemblies?
Yes. Send your BOM with hose size, length, fitting part numbers and crimp specification. We ship proof-tested, labelled assemblies ready for installation.
What is the lead time for 4SH hose?
Standard sizes typically ship in 15-25 days. Custom compounds, MSHA-style covers or large container quantities may extend lead time. Confirm with our sales engineer when ordering.
Related
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